BCA AR-15 Complete Upper Assembly, 16” 4150 Parkerized Heavy Barrel, .450 Bushmaster, Carbine Length Gas System, 1:24 Twist w/ 15” MLOK Rail
- 16” Heavy Barrel
- 4150 Chrome Moly Vanadium
- Parkerized Finish
- 1:24 Twist
- 15” MLOK Rail
- .450 Bushmaster
- Carbine Length Gas System
- M4 Flat-Top Forged Upper Receiver
- Standard Bear Creek Arsenal Bolt Carrier Group
- Charging Handle
- LS2 Flash Hider
This BCA AR-15 Complete Upper has a 16” barrel with a Heavy profile, made of 4150 steel with a Parkerized finish, and features a 1:24 Twist Rate, a Carbine length gas system and .875 Gas Block.
The Upper includes a 15” MLOK Rail, an M4 flat-top forged upper receiver with forward assist, a BCA Bolt Carrier Group, an LS Flash Hider, and a Charging Handle. It is chambered in .450 Bushmaster and machined with a single feed ramp in the barrel extension. This Upper ships out with three test casings.
This BCA AR-15 Complete Upper, like all BCA products, is subjected to numerous QA/QC checks which for our firearms and complete upper receiver assemblies includes test firing prior to approval and shipment. This Rifle is also backed by our Bear Den Guarantee.
Choose an upper designed by a US company and made in the USA. Choose Bear Creek Arsenal.
*Note – We strive to provide the most accurate photographs of our product. Variations may occur in the skeletonized section of the handguard you receive.
|Material||4150 Chrome Moly Vanadium|
|Thread Pitch||5/8 x 32|
|Gas Block System||0.875|
|Gas Hole Diameter||0.076|
|Charging Style||Rear Charging|
|Product Type||Complete Upper Assembly|
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